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Is there a method that calculates a factorial in Java?
I didn't find it, yet. Did I miss something?
I know a factorial method is a common example program for beginners. But wouldn't it be useful to have a standard implementation for this one to reuse?
I could use such a method with standard types (Eg. int, long...) and with BigInteger / BigDecimal, too...
Can I make git recognize a UTF-16 file as text?
I'm tracking a Virtual PC virtual machine file (*.vmc) in git, and after making a change git identified the file as binary and wouldn't diff it for me. I discovered that the file was encoded in UTF-16.
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Are there any reasons to use private properties in C#?
I just realized that the C# property construct can also be used with a private access modifier:
16 Answers
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Do Google refresh tokens expire?
I have used the refresh token several times in just a short period for testing purposes, but I wonder whether Google refresh tokens ever expire? Can I use the same refresh token to get another access token again and again for a long period (a week or even months)?
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Does Foreign Key improve query performance?
Suppose I have 2 tables, Products and ProductCategories. Both tables have relationship on CategoryId. And this is the query.
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How to store arrays in MySQL?
I have two tables in MySQL. Table Person has the following columns:
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ToList()— does it create a new list?
Let's say I have a class
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12
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Comparing two dictionaries and checking how many (key, value) pairs are equal
I have two dictionaries, but for simplification, I will take these two:
26 Answers
26
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What does $$ mean in the shell?
I once read that one way to obtain a unique filename in a shell for temp files was to use a double dollar sign ( $$ ). This does produce a number that varies from time to time... but if you call it repeatedly, it returns the same number. (The solution is to just use the time.)
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What is the use of hashCode in Java?
In Java, obj.hashCode() returns some value. What is the use of this hash code in programming?
9 Answers
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